Renogy DCC30S 30A DC-DC MPPT
#2 in Up to 30 AFull review
For smaller vans and truck campers with a 100 Ah battery and a panel or two on the roof. Bigger banks or arrays need the 50 A DCC50S.
Amazon $186.99$186.99
4.2/5
For boats and vans that need an isolated charger from a brand with a long track record. Buyers who don’t need isolation get more current and efficiency from the Orion XS.
- 30 ACharge current
- NoSolar input
- 87%Efficiency
- 5 yearsWarranty
Check price at Amazon$177.15
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Galvanic isolation keeps the starter and house circuits separate, which suits boats and mixed-ground systems
- Detects when the engine is running, so it works with smart alternators without an ignition wire
- Set up and monitor it from your phone over built-in Bluetooth
- Add more units in parallel later if you need more current
- Five-year warranty
Cons
- Only 87% efficient, so more alternator power turns into heat than with newer chargers
- No solar input
- Heavy and bulky for 30 A next to the Orion XS
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its current. How we rank explains each one.
Specifications
| Model number | ORI121236120 |
|---|---|
| Charging | |
| Charge current | 30 A |
| Input battery | 12 V |
| Output battery | 12 V |
| LiFePO4 profile | Yes |
| Smart alternator support | Yes |
| Peak efficiency | 87% |
| Isolated | Yes |
| Solar | |
| Solar input | No |
| Build | |
| Bluetooth | Yes |
| Ingress rating | IP43 |
| Weight | 4 lb |
| Warranty | 5 years |
| Released | 2020-10 |
Alternatives in this current
Victron Orion-Tr Smart 12/12-18 Isolated
#3 in Up to 30 AFull review
For boats and vehicles that need an isolated charger, or anyone who wants Victron Bluetooth and a 5 year warranty on a small house bank.
Off Grid Stores $162.19$162.19
ATEM POWER 25A DC-DC MPPT Charger
#4 in Up to 30 AFull review
A low cost dual input charger for a single 100 Ah battery in a 4x4 or small camper.
Amazon $149.99$149.99
Compare
Also compared with: BougeRV Sunflow 40A (charge controller), LiTime 30A MPPT Bluetooth (charge controller), Victron SmartSolar MPPT 100/20-48V (charge controller), Victron SmartSolar MPPT 100/30 (charge controller).
Compare the Victron Orion-Tr Smart 12/12-30 with any other DC-DC charger →
More from Victron Energy: every Victron Energy product ranked.